GATE Biomedical Engineering General Aptitude Syllabus

What is an interjection? Give an example.

An interjection is a word or phrase expressing sudden emotion or exclamation, grammatically independent of the rest of the sentence, e.g., 'Wow!', 'Oh!', 'Alas!'.

Define an idiom and explain why its meaning cannot be deduced literally.

An idiom is a fixed expression whose figurative meaning differs from the literal meanings of its individual words (e.g., 'kick the bucket' means to die). Its meaning is conventional and must be learned as a whole.

What does the idiom 'a blessing in disguise' mean?

It means a misfortune or seemingly bad event that eventually turns out to have a good or beneficial outcome.

What is the difference between a phrase and a clause?

A phrase is a group of related words lacking a subject-verb pair (e.g., 'in the morning'), while a clause contains both a subject and a finite verb (e.g., 'because she arrived').

What are synonyms and antonyms?

Synonyms are words with the same or nearly the same meaning (big/large); antonyms are words with opposite meanings (hot/cold).

What are homophones? Give an example.

Homophones are words that sound alike but differ in spelling and meaning, e.g., 'their', 'there', and 'they're', or 'principal' and 'principle'.

In reading comprehension, what is the difference between the main idea and a supporting detail?

The main idea is the central point or overall message of a passage, while supporting details are the specific facts, examples, or reasons that explain or back up the main idea.

In comprehension, what is the difference between an inference and a directly stated fact?

A directly stated fact is explicitly written in the text, whereas an inference is a logical conclusion the reader draws by combining textual clues with reasoning, even though it is not stated outright.

What is narrative sequencing in a reading task?

Narrative sequencing is arranging given sentences or events in their correct logical and chronological order to form a coherent, well-connected paragraph or story.

Which textual clues help in correctly ordering jumbled sentences (narrative sequencing)?

Time markers (first, then, later, finally), pronoun antecedents, connecting/transition words (however, therefore), articles introducing new vs. known nouns, and cause-effect relationships.

What is data interpretation as a quantitative aptitude skill?

Data interpretation is the ability to read, analyze, and draw conclusions from data presented in tables, charts, or graphs, often involving calculations of totals, ratios, percentages, and trends.

What is a bar graph and what is it best used for?

A bar graph uses rectangular bars of lengths proportional to the values they represent to compare discrete categories or show changes over time. Bars may be vertical or horizontal.

What does a pie chart represent, and what does the whole circle equal?

A pie chart represents parts of a whole as sectors of a circle, where each sector's angle is proportional to its share. The whole circle represents 100% (or the total) and equals $360^{\circ}$.

What is the formula for the central angle of a sector in a pie chart?

$$\text{Angle} = \frac{\text{Component value}}{\text{Total value}} \times 360^{\circ}$$

In a pie chart, an item is 25% of the total. What is its sector angle?

$0.25 \times 360^{\circ} = 90^{\circ}$.

What is the basic formula to express a part as a percentage of a whole?

$$\text{Percentage} = \frac{\text{Part}}{\text{Whole}} \times 100\%$$

What is the formula for percentage change between an old and a new value?

$$\text{Percentage change} = \frac{\text{New value} - \text{Old value}}{\text{Old value}} \times 100\%$$ A positive result indicates an increase, a negative result a decrease.

What is a line graph best suited to display?

A line graph plots data points connected by line segments and is best for showing trends and continuous change in a quantity over time.

What is a histogram, and how does it differ from a bar graph?

A histogram shows the frequency distribution of continuous data using adjacent bars over class intervals (no gaps), whereas a bar graph compares discrete categories with gaps between bars.

In data interpretation, how do you compute the average (arithmetic mean) of a set of values?

$$\text{Mean} = \frac{\text{Sum of all values}}{\text{Number of values}}$$

How is a ratio between two quantities $a$ and $b$ written and interpreted in data interpretation?

It is written as $a : b$ or $\frac{a}{b}$ and expresses how many times one quantity contains the other; ratios are usually reduced to lowest terms.

What is a scatter plot, and what relationship does it reveal?

A scatter plot displays paired values as points on a 2-D plane $(x, y)$ and reveals the correlation or relationship between two variables (positive, negative, or none).

In a 2-dimensional Cartesian plane, what do the coordinates $(x, y)$ of a point represent?

$x$ is the horizontal distance (abscissa) from the origin along the x-axis, and $y$ is the vertical distance (ordinate) along the y-axis. The point is located by moving $x$ horizontally and $y$ vertically from the origin $(0,0)$.

How many coordinates are needed to locate a point in a 3-dimensional plot, and what are they?

Three coordinates, $(x, y, z)$, representing distances along the mutually perpendicular x-, y-, and z-axes respectively.

In data interpretation, what is a table and what is its main advantage over a graph?

A table arranges data in rows and columns. Its main advantage is presenting exact numerical values precisely, allowing accurate reading of individual figures, whereas graphs better show trends and comparisons visually.

What is the difference between a stacked bar graph and a grouped (clustered) bar graph?

A stacked bar graph places category segments on top of one another within a single bar to show both parts and totals; a grouped bar graph places bars side by side to compare sub-categories directly.

On a topographic or thematic map, what does the scale indicate?

The scale indicates the ratio between a distance on the map and the corresponding actual distance on the ground (e.g., 1 : 50,000 means 1 unit on the map equals 50,000 units in reality).

In a combination chart showing both a bar and a line on two y-axes, why are two vertical axes used?

Two vertical axes (a primary and a secondary y-axis) are used so that two data series with different units or very different value ranges can be plotted together and compared on one chart.

In data interpretation, how do you find what percentage one category is of the combined total of several categories?

Divide that category's value by the sum of all the relevant categories' values and multiply by 100, i.e. $\frac{\text{Category value}}{\text{Total of all categories}} \times 100\%$.

What does the phrase 'read between the lines' mean when used about a passage?

It means to understand an implied or hidden meaning that is not stated explicitly, by interpreting subtle clues, tone, and context rather than only the literal words.